Treatment of severe acute mitral regurgitation following thoracoabdominal aortic aneurysm repair.

An asymptomatic 63-year-old male with chronic type B aortic dissection underwent repair of an expanding 6.1 cm extent I thoracoabdominal aortic aneurysm. His postoperative course was complicated by respiratory failure from severe acute mitral regurgitation likely due to papillary muscle rupture, which was corrected with transcatheter MitraClip edge-to-edge repair.